hive-forge: defer repo resolution to the accessor, not construction

hive-forge/src/verbs/pr_merge.rs

@@ -73,7 +73,7 @@ pub struct Args {
 /// merge POST itself returns a non-2xx (e.g. Forgejo `405` when the PR cannot
 /// be merged).
 pub fn run(client: &Client, args: Args) -> Result<()> {
-    let repo = client.repo();
+    let repo = client.repo()?;
     let (owner, name) = client.owner_repo()?;
     let idx = index(args.number)?;
     let pull = client